/*
 * Copyright 2017 StreamSets Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.streamsets.datacollector.creation;

import com.google.common.collect.ImmutableList;

import java.util.List;

/**
 * Represents serialized variant of the DAG without source.
 *
 * All the stages are ordered in the same way they should be executed.
 */
public class PipelineStageBeans {

  private final List<StageBean> stageBeans;

  public PipelineStageBeans(List<StageBean> beans) {
    this.stageBeans = ImmutableList.copyOf(beans);
  }

  public int size() {
    return stageBeans.size();
  }

  public StageBean get(int index) {
    return stageBeans.get(index);
  }

  public List<StageBean> getStages() {
    return stageBeans;
  }
}
